package com.hmall.order.config;
import com.hmall.order.Intercepter.LoginIntercepter;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

import java.util.List;

@Configuration
public class LoginConfig implements WebMvcConfigurer {

    // 拦截器对象
    @Autowired
    private LoginIntercepter loginCheckInterceptor;

    @Override
    public void addInterceptors(InterceptorRegistry registry) {
        // 注册自定义拦截对象
        registry.addInterceptor(loginCheckInterceptor)
                .addPathPatterns("/**")         // 设置拦截器拦截的请求路径（ /** 表示拦截所有请求）
                .excludePathPatterns("/login");     //设置不拦截的请求路径
    }


    /**
     * 扩展sprig mvc 的消息转换器
     * @param converters
     */
    @Override
    public void extendMessageConverters(List<HttpMessageConverter<?>> converters) {
       // log.info("扩展消息转换器");
        //创建消息转换器对象
        MappingJackson2HttpMessageConverter messageConverter = new MappingJackson2HttpMessageConverter();
        //设置对象转换器，底层使用Jackson将Java对象转为json
     //   messageConverter.setObjectMapper(new JacksonObjectMapper());
        //将上面的消息转换器对象追加到mvc框架的转换器集合中
        converters.add(0,messageConverter);
    }
}
